Rotary cutter-head.



msamzz. PATENTED SEPT. 24, 1907.

1". W GOBDEKE.

ROTARY'GUTTBR HEAD. AfPPLIGATION FILED mm. 11 1901.

FREDERICK W. GOEDEKE, OF EVANSVILLE, INDIANA.

ROTARY CUTTER-HEAD.

Specification of Letters Patent.

Patented Sept. 24, 1907.

Application filed March 11, 1907. $erial No. 361,877-

To all whom it may concern:- I

Be it known that I, FREDERICK W. GOEDEKE, a citizen of the UnitedStates, residing at Evansville, county of Vanderburg, and State ofIndiana, have invented certain new and useful Improvements in RotaryGutter- Heads for Molding-Machines, of which the following is aspecification.

My invention relates to rotary cutter heads for molding machines.

In rotary cutter heads it is very desirable to provide means for rigidlyholding the adjustable bits so that they cannot fly out or becomeloosened or detached, as well as to provide means whereby they may bereadily adjusted to project more or less, as desired, and be accuratelypositioned; and it is also desirable to provide means whereby the bitsmay be changed and larger or smaller ones, or ones of differentconformation, substituted.

My present invention is designed to meet the requirements of asuccessful rotary cutter head by the provision of novel means forholding and clamping the bits, and the employment of gage-pinsassociated with the clamping members and with the bits in a novelfashion, as will more fully appear hereinafter.

The novel features of the invention are recited in the appended claims.

In the accompanying drawings: Figure 1 is a side elevation; Fig. 2, aplan view with the upper clamping disk removed; Fig. 2, a bottom planview of the upper clamping disk; Fig. 3, a view similar to Fig. 2, butshowing the bits projected through the notches; and Fig. 4, aperspective of one of the bits.

- The spindle 1 of the molding machine has loosely resting on a shoulderthereof, the lower clamping disk 2, which is provided with a circularflange 3 having notches or outlets 4 and 5 at diametrically oppositepoints, one margin of each notch being almost square, as at 6, and theother margin being slanted or inclined, as at 7. Secured to and risingfrom the disk 2 are gage-pins 8. I

The numeral 9. designates an upper clamping disk I which is of the sameconstruction as the lower clamping disk, except that it is adapted tofit over the spindle and has openings 10 for the reception of thegage-pins 8. A nut 11 is used for clamping the disk against the bits 12.

The bits 12 are similar in construction, being of 'arcshape witharc-shaped inner faces 13, the are being of a circle of considerablygreater diameter than that of the spindle. The cutter end of the bit isprovided with a face 14 which is disposed in a general angular directionto the length of the bit, and when the bits are in position, this facebears against one of the gage-pins 8, while the arc-shaped face 13 isadapted to bear against the spindle of the machine. This relationship orassociation of the parts enables the bit to be shifted laterally toproject more or less, while it is gaged by the gagepins, the surfaces 13and 14 sliding against the spindle 1 and gage-pin 8, and herein I have aradically different construction from anything heretofore known to theart. At the same time, the gage-pin constitutes an abutment for the bitandassists in maintaining it in position. I

The bits are provided with upper and lower flanges 15 and 16, which areadapted to engage the flanges 3 on the clamping disk, which constructionprevents the bits from accidentally flying out from between the clampingdisks.

The outlets or notches-4 and 5 are for the reception of the flangedparts of the bits, as shown in Fig. 3, when it is desired to project thebits to their limits, in which case the margins 6 and 7 engage theflanges of the bits.

The gage-pins lock the clamping disks against relative rotation andprevent any disarrangement of the adjustment of the bits and also insureagainst any accidental detachment of said bits when setting.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent, is:

1. In a cutter head, the combination with a pair of clamping diskshaving outer flanges and relatively broad open spaces between saidflanges and the central parts of said disks, of hits freely disposedbetween the clamping disks for bodily shifting and having flanges toengage the flanges aforesaid, and means for clamping the disks on thebits.

2. In a cutter head, the combination with a pair of clamping diskshaving outer flanges and relatively broad open spaces between saidflanges and the central parts of said disks and also provided withbit-receiving outlets or notchesthrough said flanges, of bits freelydisposed between the clamping disks and having flanges to engage theflanges aforesaid, said bits being also adapted for projection throughthe notches or outlets, and means for clamping the disks on the bits. 7

3. In a cutter head, the combination with clamping disks, of independentgage-pins engaging said disks, bits located freely between the disks forbodily shifting and abutting but not attached to the gage-pins, andmeans for clamping the disks on the bits. v

4. In a cutter-head, the combination with a pair of clamping diskshaving outer flanges and relatively broad open spaces between saidflanges and the central parts of said disks, of gage-pins engaged withthe disks, bits freely disposed between the clamping disks and havingflanges

